Rivet-holder.



P. W. HERSHBERGER.

BIVET HOLDER.

APPLICATION FILED Dnc. 24, 1910.

Patented May 9, 1911.

Inventor l 1 l 4 f y Witnesses l Attoneys i To-all whom 't may concern."

rmnw. HERSHBERGER, oF GRANTS PA'ss', OREGON, AssIGNoRoF NE-HALF 'roFFICE.

ANDREW A.'s'rRoM, or GRANTS PAss', OREGON.'

"RIVM-HOLDER.

v Application ined December 24, 1910. seriai No. 599,092.

financien, a citizen of the United`States, re-

.the saine is to produce an iinin-oved rivet siding at (irrants Pass, inthe. county of.

Josephine and' State of Oregon, have inventeda nw and usefulRivet-I-Iolder,'of which the follou-'ing is a specification.

'lhis linvention 4relatesto riveting niaehines, andinore espccially'tothat. type thereofl adaptedtor use in tubular articles sueh as pipesI orboilers;-and the object: 0f

holder or anvil for insertion into/the pipe or boiler to hold the headof the rivetwhile the workniai'i on the exterioris pounding on the shankthereof.

The invention consists in a rivet holder constructed so as to yieldinglysupport its anvil, and with provision whereby the exitire device mayberedueed in length for insertion into or removal from the boiler,

rall' as. herein more fully-described and claimed and as shown in thedrawings f tion through the in'iplei'i'ient itself.

wherein-- Figure l is a section of a boiler and an elevation with myimproved implement Fig. 2 is a vertical central sec- Fig. 3 is ahorizontal section on the line 3 3 of ["igjz.V

This rivet. holder comprises primarily an therein.

a.ii\'il, a, base aiul yielding` support for the anvil,'and a levern'iechanism whereby the' support. eau be compressed so that the lengthot' the entire implement may be reduced.

l/he anvil itsell' comprises a solid member l having' a socket 2 in itsupper end for the reception ot the head of the rivet 3 winch f is hereshown as passing through theshell ol irhoiler ll, and this membertelescopes into a tubular member .'i and is adjustable therein by meansof a pin or bolt (l passing through the tubular member and through loneof a series of holes 7 in the solid meniber. ly this or equivalentmeans-of adjustmentol" the length, the implement may be adapted to workol dilferent size. The

tubular member has at about its nud-length an aniiularrigid collar andthrough this member, preferably just; above the collar, ex-

tends a 'pin or'pivot bolt 9.4`

'.llie base comprises a loot l1 from which risesqa solid steinl l2lit.ting telescopieallyV and slidalil-y u'itliiii the lower end olftlietubular member 5, and around these parts is 'coiled 1n-.expansive"spring 13 resting ,at Iits lower endupon the foot and pressin upwardat; its upper end berieaththe col ar 8; It follows that with .theuse ofsuch yieldingsi'ipport, the anvil would be held about specification@fietsers iatnp May 9', 1911 as seen in Fig. 2 and the weight-ofanyblowsl upon thel rivet-will be communicated through the spring 13to the base and resisted by` the foot of the latter which presses uponthe lower side'of the work 4, and therefore the spring must be otsutilcient force to resist the impact'l of the strongest blowswhich willbe necessary to upset the. rivet. In order to insert thisiinpleii'ientvinto thework 4, it is ob vious'tlia,t the rather powerfulspring` 13 must-be coin'- ressed manuali andvin order todothisv I makeuse ofthe following device.

y'l`hehgver n'ieehanisiii comprises :i lever 2l forked atitsforward"endif as atflso as to pass astride the tubular member 5 andhaving the arn'is ofthe fork li'i'iounted"pivotally on the'bolt 9, and.their loiward-extreinitics l Y 'arcpivoted as at 23 to the upper endsof links whose lower ends are pivotedat 25 to the baseat: any suitablepoint but'l prefer# sof ably to the opposite sides of'itstoot; 1l. las Yshown. Itis obvious the depression of thel outer end of the lever willcause .the bolt'y El to descend andthe. collar S to compressthe spring'122. and as this shortens the entire length of tlui'iiiipleineiil'l'lie latterrniay then be inserted into the boiler in order. to llit'Iinvention,

teleseopically surrounding the solid mein-jl l ber and havii'ig :inannula'il eollar, ainlineaiis `for adjustalily connecting thesenieni'bersto each other; a liase consisting olla foot; and a Ysteinfitting l'eleseopieallly und 'lmisely within saidptiibular member. and uspring surrounding' tliese parts betweeiiftlie vlootf 9er-errv Ai alever hevinga-vforkedfront end stra'tldling.

said tubular member, A:i 'pivot b'enveenthe,1 latter'and iujms .of thefork, and links coni 15 n'ectingutheextremities ofsaid arms with e vthebase. Y n ll l .f In testimony that I claim the foregoing as* my own, Ihave hereto uflxed-my slgmitnre in the presence of two witnesses.

' PETER lV. I-IERSHBERGER AlVitness'es Y i' JOSEPH Moss, A. M. MoonY.V

